title: Regulatory mass spectrometry.
mesh_terms: D016604:Aflatoxin B1; D000348:Aflatoxins / Q000032:analysis; D003404:Creatinine / Q000032:analysis; D049673:History, 20th Century; D013058:Mass Spectrometry / Q000266:history*; D010575:Pesticides / Q000032:analysis; D000072317:Polychlorinated Dibenzodioxins / Q000032:analysis; D014481:United States; D014486:United States Food and Drug Administration / Q000266:history*
chemical_list: D000348:Aflatoxins; D010575:Pesticides; D000072317:Polychlorinated Dibenzodioxins; D016604:Aflatoxin B1; D003404:Creatinine